6-Chloro-4-methoxy-1-methyl-1H-pyrazolo[3,4-b]quinoline CAS 61689-20-1
| CAS No. | 61689-20-1 |
| Molecular Formula | C12H10ClN3O |
| Molecular Weight | 247.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 6-Chloro-4-methoxy-1-methyl-1H-pyrazolo[3,4-b]quinoline (C12H10ClN3O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
6-Chloro-4-methoxy-1-methyl-1H-pyrazolo[3,4-b]quinoline (CAS 61689-20-1), molecular formula C12H10ClN3O and molecular weight 247.68 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 6-Chloro-4-methoxy-1-methyl-1H-pyrazolo[3,4-b]quinoline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H10ClN3O |
| Molecular Weight | 247.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- N-(3-bromophenyl)thiazole-5-carboxamide (CAS 901599-23-3)
- 5-Bromo-4-iodo-2-(trifluoromethyl)benzonitrile (CAS 1208076-73-6)
- 2-((3aS,8aR)-3a,8a-dihydro-8H-indeno[1,2-d]oxazol-2-yl)acetonitrile (CAS 175166-50-4)
- Semaglutide impurity 72 (CAS CATO-C4X-222672)
Why CATO?
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